[Gaz64]

There are two reasons why the carbs lean forward.

Any Holley suffers incorrect metering from acceleration g force.

Dual quads facing BACKWARDS is even worse for the first carburetor that you spend the majority of time on.

The Primary of the front carb is closest to the middle of the two primaries, hence why it leads first, and only this carb needs the choke mechanism.

Adding wedges now to correct this places the carbs on different levels, so the linkage could be wrong.

One piece aircleaner also won't fit.

Gary